New DDRop Hardware Attack Bypasses Intel TDX and AMD SEV-SNP Confidential Computing Protections

Researchers have disclosed 'DDRop,' a hardware attack that exploits a memory protection weakness in Intel TDX and AMD SEV-SNP, allowing an attacker with physical access to silently drop writes to a server's memory. This vulnerability affects confidential computing offerings on major cloud platforms like AWS, Microsoft Azure, and Google Cloud.